Blackcap raspberry, also known as Rubus occidentalis, is a juicy and delicious fruit that is similar in taste to blackberries. However, if you are unable to find blackcap raspberry in your local grocery store or farmer's market, there are several other synonyms that you can use to search for this berry. Some of the most common synonyms for blackcap raspberry include black raspberry, thimbleberry, and dewberry. These berries are all similar in taste to blackcap raspberry and can be used in a variety of sweet and savory dishes. Whatever name you call it, blackcap raspberry is a flavorful addition to your kitchen.